diff --git a/tests/test_callbacks.py b/tests/test_callbacks.py
index 7d758492..f1d96cf4 100644
--- a/tests/test_callbacks.py
+++ b/tests/test_callbacks.py
@@ -17,7 +17,6 @@ def test_callbacks(self):
             EC.presence_of_element_located((By.ID, "cytoscape"))
         )
 
-        
         def create_input_and_save(css_selector,
                                   dir_name,
                                   options,
@@ -215,7 +214,6 @@ def click_button_and_save(name_to_xpaths, dir_name, save=True):
             options=['5', '2'],
             prefix='NodeBorderWidth'
         )
-        
 
         create_input_and_save(
             css_selector='input#dropdown-node-border-style',